Le samedi 30 avril 2011 23:01:18, Jonathan Greenberg a écrit : > Even: > > Thanks: how would I "wildcard" this into a gdalbuildvrt? The files all > follow the pattern MCD15A2.A2002185.h14v10.005*
On Linux, you could try : for i in MCD15A2.A2002185.h14v10.005*; do echo HDF4_EOS:EOS_GRID: \"$i\":MOD_Grid_MOD15A2:Lai_1km; done | xargs gdalbuildvrt mosaic.vrt On Windows, I'm not sure how you would do that. > > --j > > On Sat, Apr 30, 2011 at 11:26 AM, Even Rouault > <[email protected] > > > wrote: > > > > Le samedi 30 avril 2011 17:34:28, Jonathan Greenberg a écrit : > > > GDALers: > > > > > > I have recently come across the mosaicking magic that is 1) build a vrt > > > usin gdalbuildvrt and then 2) gdal_translate the vrt to whatever format > > > I want -- I'm noticing this is a crazy-fast way to do mosaicking > > > compared > > > > to > > > > > some other techniques. My current issue is that I have a set of MODIS > > > HDF4 files, and I'd like (if possible) to repeat this process, using a > > > specific layer in the HDF to be mosaicked. What is the trick to doing > > > this? As far as I know, all the tiles have the same subdataset name. > > > I suppose I can gdal_translate each tile first, then build the vrt, > > > then re-export the vrt, but I wanted to know if there was a faster way > > > to do this (e.g. skipping the initial gdal_translate)? > > > > > > Here's the gdalinfo dump of one of the tiles. I'm interested in > > > > mosaicking > > > > > the > > > > HDF4_EOS:EOS_GRID:"MCD15A2.A2002185.h14v10.005.2007172042412.hdf":MOD_Gri > > d > > > > > _MOD15A2:Lai_1km subdataset layer: > > You should be able to use directly the subdataset name as an input > > dataset name for gdalbuildvrt. No need for it to be a "real" filename. _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
